Sewage-disposal tank



oct 2 1930- G. VAN. STEENBURG SEWAGE DISPOSAL TANK Filed May 22,v 1929 2 Sheets-Sheet l Inventor {ea/ye VnQSZ E enZag Attorney Oct. 28, 1930.

G. VAN STEENBURG SEWAGE DISPOSAL TANK Filed May 22, 1929 2 Sheets-Sheet 2 i ln'vento} fieaye 1 sieeniu y Patented Oct. 28, 1930 BA ENTYoF mE-j GEOBGEjVAN STEENBURG, OF- ORLANDO, FLORIDA SEWAGE-DISPQSAL an: i

. Application filed May22,

This'invention relates to a structure for the, sanitary treatment and disposal of sewage matter, the same being primarily intended for use as an outside privy, as well as for the treatment'of house sewage such as under ordinary conditions is discharged from city residences and the like'into modern sewage systems. I f

In carrying the invention into actual prac- .10 tice, Ihave evolved and produced what I believe to be an economical, simplified and practicable form of privy which comply with the needs and requirements of devices of this class, such as are principally intended for I usein rural districts.

My idea includes. the embodiment of a sectional concrete box or tank which is partly submerged in the ground, the same being used in association with an appropriately constructed house, the house being such in construction as to cover and protect the specific portions of the tank and the rear half being projected to the exterior where it is rendered accessible for periodical cleaning. 7

In accordancewith the invention, the exposed part of the tank is provided with a removable slab or cover which facilitates the V cleaning operation and associated with and rising from this is a vent forming stack which 3 is also located on the exterior, all features cooperating in a dependablemanner to render the structure unusually sanitary and less likely to the attraction of flies and other insects and pests.

Other featuresand advantages will become more readily apparent from the following .description'and drawings.

In the drawings: I

Figure 1 is a view in section and elevation of the completestructure showing the rela tionship of parts.

Figure 2 is a top plan view of the privy per se. I

Figure 3 is a front elevational view of the same.

Figure 4 is a transverse vertical section onthe line 44 of Figure 1.

Referring now to the drawings by reference numerals it will be seen that .5 desig- 0 nates generally a substantially rectangular 1929. Serial no. 365,049. I

tend beyond the rearwall 9 of the house, as

clearly seen in Figure 1. The tankis open atits bottom as seen in Figure 4e and made up of front andrear walls 10 and 11, as seen in V Figure 4, and end walls 12, cooperating there- 1 p with." The abutting ends of these walls are; interlocked by mortised joints of the type shown. 'This permits the walls to be precast and carriedto the jobto beset up in a'convenient "and expeditious manner. These interlocking joints, generally designated by the reference character 13, as. shown foreX- ample in Figure 3. The closing top' corn v prises 'two independent slabs, the front slab 14: is disposed on a'horizontal plane and provided with inlet aperturesbr openings 15. The rear slab which is inclined downwardly and outward-1y is designated bythe reference character 16. This slab, as is obvious in 8'0 Figure 1, is located on the exterior of the building and serves toshed water onto the ground. It carries the vent forming stack 17 which is also located on the exterior of the building and of any appropriate construction. In actual practice, it has been found convenient to provide the top with an'insect screen (not shown). Both of these slabs are bodily removable. The slab 16 is removable to permit access to be had to the interior for cleaning. v

The front slab ismade removable in order that the accessories may be fastenedv thereon.

For instance, the accessories comprisingin rangement facilitates the manufacture and construction of the device.

Various changes in the specific size, shape and arrangement of parts may be resorted to,

5 without departing from the spirit of the invention or the scope of the appended claim.

It will beobservedthat a feature of great importance in my invention lies in thereonstruction of the tank. The four vertical.

m walls of the tank are molded separately and provided with interlocking members at their edges, so that when they are brought together to form a box-like tank they form-a solid unitary structure. One advantage of this is that a base or foundation forthe walls is rendered unnecessary as it will be impossible for the Walls to se arately settle into the earth,- and another a vantage isthat the surrounding earth holds the walls in interlocking relation. A further advantage is that the walls ma all be constructed separately in a shop an transported in that condition to the loca-\ tion of the tank and there assembled.

What is claimed is: i i

g In an apparatus "of the class set forth, a'

tank made of precast concrete slabs partially embedded in the ground and embodying front, rear and end slabs formed with means at their vertical ed es for locking them together when assem led in a box-like shape,

said rear slab being of less height than the front slab and the top ed es of said end slabs being inclined downwardy and rearwardly fora portion of their length, a front and a rear top slab also precast and supported by the vertical slabs, said rear top slab being positioned on the inclined portion of the end Walls and said front top slab being formed with seat openings, and a housing covering the front upper portion of said tank leaving the upper rear portion exposed outside of the housing for the purposes set forth.

In testimony whereof I affix my signature.

GEORGE VAN STEENBURG. 

